India. Ministry of Home Affairs. Office of the Registrar General India. Language Division & Nigam, R. G. (1972). Census of India, 1971: Language handbook on mother tongues in census. The Managre of Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Home Affairs. Office of the Registrar General India. Language Division और R. G. Nigam. Census of India, 1971: Language Handbook on Mother Tongues in Census. The Managre of Publications, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Ministry of Home Affairs. Office of the Registrar General India. Language Division और R. G. Nigam. Census of India, 1971: Language Handbook on Mother Tongues in Census. The Managre of Publications, 1972.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.